Portion of a boot upper



FIG. 1 is a left side elevational view of a portion of a boot upperaccording to the present invention.

FIG. 2 is a right side elevational view of the portion of a boot upper.

FIG. 3 is a front elevational view of the portion of a boot upper.

FIG. 4 is a rear elevational view of the portion of a boot upper; and,

FIG. 5 is a perspective view of the portion of a boot upper.

The dash-dot broken lines represent boundaries between areas that areand are not part of the claimed design. The dashed broken lines depictparts of the portion of a boot upper that form no part of the claimeddesign. The claimed design is for a portion of a boot upper asillustrated in the drawings, as well as the opposite matching portion ofa boot upper, i.e., the mirror image of that shown.

CLAIM The ornamental design for a portion of a boot upper, as shown anddescribed.